Sadly this is the truth. Slayers is a staple for crack animes, comedy and cliche characters used now.
But the side characters and how they interact with the main character is what makes this anime so good. This is why the OVA and movies did so bad, they had friggin Naga (Seriously, wtf?) and tried to base the comedy offa Lena completely; and it sucked.
I'm an oldfag, and really enjoyed slayers but I think this one stands a chance of being godly. For example, it's not pure fanservice (see subpoint: Lena's boobs).